Electrodialysis

Organic acids are increasingly used for various industrial applications. Their production is mainly achieved by fermentation. Precipitation or extraction stages, which generates big amount of effluents, are then traditionally used to get the acid in a suitable form. Bipolar membrane electrodialysis

The purpose of this paper is to describe an experimental method developed to study the use of electrodialysis (ED) as a recycling process introduced within some operations in the surface treatment industry. The case study is acid picking before electroplating. The first step is the study and selecti

Electrodialysis (ED) with ion-exchange membranes represents one of the most important membrane methods of treatment of industrial effluents discharged. Attention to the deep ecological aspect of this method implies favourable forecasts for its future. Preparation and analysis of the properties of as

The high acidity of passion fruit limits its addition in food preparation and gives poor aroma and flavour products. The reduction of the acidity of the fruit juice can avoid this problem. Various methods such as calcium precipitation, ion-exchange resins and electrodialysis (ED) with homopolar and

The separation performances of divalent ions (Ca2+ and Mg2+) by electrodialysis (ED) were compared using a constant voltage mode of operation. For the batch tests, TS-1-10 ED equipment was employed. During the experimental studies, the effects of electrical potential applied and flow rate of streams

A process is set up to treat ammonium nitrate wastewaters. It couples membrane electrolysis and electrodialysis. Membrane electrolysis regenerates nitric acid and ammonia while electrodialysis is suitable to extract a depleted stream from the salt circuit and to recycle a concentrated stream. The me

Electrodialysis (ED) is an efficient process for the treatment of drinking water with high nitrate concentration. However it achieves only a transfer of pollution by producing concentrated brines. This study demonstrated the feasibility of ED brine denitrification in a membrane bioreactor (MBR). The

Molecularly imprinted polymeric membranes were prepared from various oligopeptide tweezers by adopting Boc-D-Trp as a print molecule. Molecularly imprinted membranes recognized the D-isomer of Ac-Trp, of which absolute configuration was the same as that of the print molecule, from racemic Ac-Trp mix

Nowadays, treatment of vinasse from the alcohol fermentation is a major cost centre which decides the economic viability of this traditional industry. Increasingly stringent environment norms in France have put enormous pressure on manufacturers of alcohol from traditional feedstock like beet molass

It is common practice in electrodialysis demineralization of calcium hydrocarbonate natural waters to restrict the current density by the limiting diffusion one. Exceeding this value causes the irreversible water dissociation at the interface of the anion-exchange membrane and solution and selective